Brick-machine



AQGRAMER- BRICK MACHINE.

' (No Model.)

No. 294,368. Patented Mar. 4/1884.

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UNITED STATES PATENT OFFICE.

- ANTHONY ORAMER, DETROIT, MICHIGAN.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 294,368, dated March 4, 1884. Application filed September 18, 1883. (No model.)

' To aZZ whom it may concern Be it known that I, ANTHONY CRAMER, of,

Detroit, county of Wayne, and State of Michigan, have invented certain Improvements in Brick-Machines, of which the following is a specification. I I

This invention relates to an improvement in brick-machines of the class wherein the clay is mixed in an upright pug-mill and forced into reciprocating molds beneath the same.

As in present use, such pug-mills are provided with vertical shafts, and have cutting-blades secured to them,which mix and depress the clay. The objection against this arrangement is the liability of the clay being carried around the shafts by the blades, instead of being. cut up and mixed; and it is the object of my improvement to overcome this defect.

In the drawings 'which accompany this specification, Figure 1 is a vertical central section of my improved pug-mill.

shaft, E, journaled on top of the casing, and.

which receives its motion in any convenient manner.

G are the wipers which force the clay out through the openingH near the bottom. The wipers are set at right angles to each other, as shown in Fig. 3, the end of one approaching near to the hub of the other and revolving in opposite directions, thereby effectually,

pushing the clay out through the opening H, and preventing said clay from adhering to or clogging either wiper, as the point of one arm follows the rear face of the other arm, and thus clears the clay away from it.

F are the cutting-blades, secured to the shafts B in any desirable manner, and so arranged that in the rotation of the shafts the blades will not interfere with each other, while they are placed sufficiently close to effect a thorough cuttingup of the clay. I preferably use a square or rectangularshaped case, as

this shape materially assists the action of the cutting-blades, as all .the clay which is shoveled in at the rear end of the case isbrought immediately under the joint action of the blades upon both shafts.

It will be noticed that the cutting-blades work in opposite directions, and are of sufficient length to produce a joint action upon the clay for a considerable part of their revolutions.

What I claim as my invention is 1. A pug-mill provided with two vertical shafts revolving in opposite directions, and carrying interacting wipers set at right angles to each other, the end of one acting in close proximity to the rear face of the other,whereby both are kept free from and prevent the clay clogging each other, substantially as specified. I

2'. In a brick-machine, a pug-mill provided with two vertical shafts revolving in opposite directions, and having interacting cutting blades, and provided with interacting Wipers at their lower ends set at right angles to each other, substantially as specified.

3. In a brick-machine, a pug-mill provided with two vertical shafts revolving in opposite directions, and having interacting cuttingblades F and wipers G, set at right angles to each other, the outer end of one wiper approaching close to the hub of the other, in combination with a rectangularshaped casing having a discharge-opening, H, in its lower end, substantially as and for the purpose described.

4. In a pug-mill, in combination with the casing having a discharge-opening, H, at its lower end, of two oppositely-revolving verticalshafts mounted therein, and carrying interacting cutters and interacting Wipers, said wipers set at right'angles to each other, as specified, bevel-pinions G, secured to the upper ends of said shafts, and meshing with bevelpinions D, secured to the horizontal main shaft E, all constructed, arranged, and operating as specified.

' ANTHONY CRAMER.

NVitnesses:

JACOB DANIEL,-

ARTHUR E. KIEFER.. 

